食品安全是企业的生命线，没有安全就没有一切。

So many good ideas are never heard from again once they embark in a voyage on the semantic gulf.

The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.

理解宇宙就是理解我们自己，因为我们都是由形成恒星的星尘构成的。